qemu-e2k/target
Peter Maydell 15002921e8 Enable PV backends with Xen/KVM emulation
This is phase 2, following on from the basic platform support which was
 already merged.
 
  • Add a simple single-tenant internal XenStore implementation
  • Indirect Xen gnttab/evtchn/foreignmem/xenstore through operations table
  • Provide emulated back ends for Xen operations
  • Header cleanups to allow PV back ends to build without Xen itself
  • Enable PV back ends in emulated mode
  • Documentation update
 
 Tested-by: Paul Durrant <paul@xen.org>
 ... on real Xen (master branch, 4.18) with a Debian guest.
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Merge tag 'xenfv-2' of git://git.infradead.org/users/dwmw2/qemu into staging

Enable PV backends with Xen/KVM emulation

This is phase 2, following on from the basic platform support which was
already merged.

 • Add a simple single-tenant internal XenStore implementation
 • Indirect Xen gnttab/evtchn/foreignmem/xenstore through operations table
 • Provide emulated back ends for Xen operations
 • Header cleanups to allow PV back ends to build without Xen itself
 • Enable PV back ends in emulated mode
 • Documentation update

Tested-by: Paul Durrant <paul@xen.org>
... on real Xen (master branch, 4.18) with a Debian guest.

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# gpg: Signature made Tue 07 Mar 2023 22:32:28 GMT
# gpg:                using RSA key 314B08ACD0DE481133A5F2869BE980FD0AC01544
# gpg:                issuer "dwmw@amazon.co.uk"
# gpg: Good signature from "David Woodhouse <dwmw@amazon.co.uk>" [unknown]
# gpg:                 aka "David Woodhouse <dwmw@amazon.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 314B 08AC D0DE 4811 33A5  F286 9BE9 80FD 0AC0 1544

* tag 'xenfv-2' of git://git.infradead.org/users/dwmw2/qemu: (27 commits)
  docs: Update Xen-on-KVM documentation for PV disk support
  MAINTAINERS: Add entry for Xen on KVM emulation
  i386/xen: Initialize Xen backends from pc_basic_device_init() for emulation
  hw/xen: Implement soft reset for emulated gnttab
  hw/xen: Map guest XENSTORE_PFN grant in emulated Xenstore
  hw/xen: Add emulated implementation of XenStore operations
  hw/xen: Add emulated implementation of grant table operations
  hw/xen: Hook up emulated implementation for event channel operations
  hw/xen: Only advertise ring-page-order for xen-block if gnttab supports it
  hw/xen: Avoid crash when backend watch fires too early
  hw/xen: Build PV backend drivers for CONFIG_XEN_BUS
  hw/xen: Rename xen_common.h to xen_native.h
  hw/xen: Use XEN_PAGE_SIZE in PV backend drivers
  hw/xen: Move xenstore_store_pv_console_info to xen_console.c
  hw/xen: Add xenstore operations to allow redirection to internal emulation
  hw/xen: Add foreignmem operations to allow redirection to internal emulation
  hw/xen: Pass grant ref to gnttab unmap operation
  hw/xen: Add gnttab operations to allow redirection to internal emulation
  hw/xen: Add evtchn operations to allow redirection to internal emulation
  hw/xen: Create initial XenStore nodes
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-03-09 13:22:05 +00:00
..
alpha target/alpha: Drop tcg_temp_free 2023-03-05 13:44:07 -08:00
arm target/arm: Rewrite check_s2_mmu_setup 2023-03-06 14:08:12 +00:00
avr target/avr: Drop tcg_temp_free 2023-03-05 13:44:07 -08:00
cris target/cris: Drop tcg_temp_free 2023-03-05 13:44:07 -08:00
hexagon target/hexagon/idef-parser: Use gen_constant for gen_extend_tcg_width_op 2023-03-05 13:45:16 -08:00
hppa target/hppa: Drop tcg_temp_free 2023-03-05 13:44:07 -08:00
i386 hw/xen: Implement soft reset for emulated gnttab 2023-03-07 17:04:30 +00:00
loongarch target/loongarch: Drop tcg_temp_free 2023-03-05 13:44:07 -08:00
m68k target/m68k: Drop tcg_temp_free 2023-03-05 13:44:07 -08:00
microblaze target/microblaze: Avoid tcg_const_* throughout 2023-03-05 13:45:44 -08:00
mips target/mips: Set correct CP0.Config[4, 5] values for M14K(c) 2023-03-08 00:37:48 +01:00
nios2 target/nios2: Drop tcg_temp_free 2023-03-05 13:44:08 -08:00
openrisc target/openrisc: Drop tcg_temp_free 2023-03-05 13:44:08 -08:00
ppc target/ppc: Drop tcg_temp_free 2023-03-05 13:44:08 -08:00
riscv Sixth RISC-V PR for 8.0 2023-03-07 12:53:00 +00:00
rx target/rx: Drop tcg_temp_free 2023-03-05 13:44:08 -08:00
s390x target/s390x: Split out gen_ri2 2023-03-05 13:46:26 -08:00
sh4 target/sh4: Drop tcg_temp_free 2023-03-05 13:44:08 -08:00
sparc target/sparc: Avoid tcg_const_{tl,i32} 2023-03-05 13:46:39 -08:00
tricore target/tricore: Drop tcg_temp_free 2023-03-05 13:44:08 -08:00
xtensa target/xtensa: Avoid tcg_const_i32 2023-03-05 13:47:25 -08:00
Kconfig hw/loongarch: Add support loongson3 virt machine type. 2022-06-06 18:09:03 +00:00
meson.build target/loongarch: Add target build suport 2022-06-06 18:09:03 +00:00